Local Motors 3D printed a plastic car called the Strati in front of thousands of attendees at the International Manufacturing Technology Show in Chicago.

Local Motors took the chassis, seats, door panels, and thousands of other components, and 3D printed all those parts into just one piece. The first phase of the process, completed on Tuesday, took just 44 hours.

“A 3D printed car like ours will only have dozens of components,” Local Motors engineer James Earle tells Business Insider. In the near future, he says, it could cost only about $7,000 to manufacture, perhaps the start of what will become a niche market for customized cars.

“You can make a vehicle for yourself that’s basically a one-0ff, do the entire design,” he says. “You could create custom-fit seats that conform to your shape, things like that, that you couldn’t do with cars now.”